Core i9-13900KF vs Core i5-1235U

Primary details

Comparing Core i5-1235U and Core i9-13900KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	827	77
Place by popularity	8	not in top-100
Cost-effectiveness evaluation	no data	65.35
Market segment	Laptop	Desktop processor
Series	Intel Alder Lake-M	Intel Core i9
Architecture codename	Alder Lake-U (2022)	Raptor Lake, Raptor Cove, Gracemont
Release date	23 February 2022 (2 years ago)	27 September 2022 (1 year ago)
Launch price (MSRP)	no data	$564
Current price	no data	$631 (1.1x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i5-1235U and Core i9-13900KF basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	10 (Deca-Core)	24 (Tetracosa-Core)
Threads	12	32
Base clock speed	1.3 GHz	3 GHz
Boost clock speed	4.4 GHz	5.7 GHz
Bus support	no data	4 × 16 GT/s
L1 cache	80K (per core)	80K (per core)
L2 cache	1.25 MB (per core)	2 MB (per core)
L3 cache	12 MB (shared)	36 MB (shared)
Chip lithography	Intel 7 nm	Intel 7 nm
Die size	no data	257 mm2
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	No	Yes

Compatibility

Information on Core i5-1235U and Core i9-13900KF compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCBGA1744	FCLGA1700
Power consumption (TDP)	15 Watt	125 W, 253 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-1235U and Core i9-13900KF. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
FMA	+	no data
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	+	+
TSX	+	no data
Idle States	no data	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Turbo Boost Max 3.0	no data	+
Status	Launched	Launched

Security technologies

Core i5-1235U and Core i9-13900KF technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-1235U and Core i9-13900KF are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-1235U and Core i9-13900KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR5	DDR5-5600, DDR4-3200
Maximum memory size	64 GB	192 GB
Max memory channels	2	2
Maximum memory bandwidth	no data	89.6 GB/s
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Iris® Xe Graphics eligible	no data
Quick Sync Video	+	no data
Graphics max frequency	1.2 GHz	no data
Execution Units	80	no data

Graphics interfaces

Available interfaces and connections of Core i5-1235U and Core i9-13900KF integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core i5-1235U and Core i9-13900KF integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2304 @ 60Hz	no data
Max resolution over eDP	4096 x 2304 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core i5-1235U and Core i9-13900KF integrated GPUs, sometimes API versions are included.

DirectX	12.1	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core i5-1235U and Core i9-13900KF.

PCIe version	4.0	5.0 and 4.0
PCI Express lanes	20	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Core i9-13900KF outperforms Core i5-1235U by 337% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	8.68	37.91
Recency	23 February 2022	27 September 2022
Physical cores	10	24
Threads	12	32
Power consumption (TDP)	15 Watt	125 Watt

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Should you still have questions on choice between Core i5-1235U and Core i9-13900KF, ask them in Comments section, and we shall answer.

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